It was declared a Protected Natural Area in 1989.
It is situated in the north-eastern province of Cordoba, in the central part of the enormous range of Sierra Morena zone, covering an area of 41,212 hectares.
This Natural Park has a soft, flattened relief on its western sector contrasts with the rough and rugged of great beauty, of the ravines and gorges along the river Mares in the easternmost sector.
Altitudes range between 200 and 800 meters. reaching the highest levels in the Beehive and Pingano Picos.
With a linear length of 40 km. within the natural park, the river Mares acts as the drainage of this natural area, although it has among other streams as Arenosillo Gonzalo Martín and Frescoso.
The natural park is divided between the municipalities of Cardena y Montoro. It is accessed via the N-420 and C-420.La abundance of game species, deer, boar, deer, partridge, doves, rabbits, etc., explains the level of hunting use in this Natural Park with numerous preserves big and small. They can find the golden eagle, imperial eagle, black vulture and lynx all.